Question

Which of the following test is useful to distinguish between :

2-hexene and 1-hexanol

1) action of bromine water

2) action of potassium permanganate

3) action of dry ether

Answer 1

2hexene and 1hexanol can be distinguished by addition of bromine water.
2hexene will decolourise the brown colour of bromine water as a molecule of bromine is added to the carbon carbon double bond.
This test is not given by 1-hexanol as it does not contains carbon carbon double bond.